#!/usr/bin/env python
# coding=utf-8
# Filename: Select.py
# Created by iFantastic on 2017/6/24
# Description: 第一种方法下载网页
import cookielib
import urllib2

# url = 'http://www.baidu.com'
url = 'http://baike.baidu.com/item/Google'

print '第一种方法'
response1 = urllib2.urlopen(url)
print response1.getcode()
print len(response1.read())

print '第二种方法'
request = urllib2.Request(url)
request.add_header( 'user-agent', 'Mozilla/5.0')
response2 = urllib2.urlopen(request)
print response2.getcode()
print len(response2.read())

print '第三种方法'
cj = cookielib.CookieJar()
opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(cj))
urllib2.install_opener(opener)
response3 = urllib2.urlopen(url)
print response3.getcode()
print cj
print response3.read()
